Cloud-based apps rely on an increasingly diverse set of underlying services, tied together through APIs - and hackers have taken notice. To resolve attacks and outages affecting APIs it is critical to understand and test the performance of the service delivery of application components.

Developers are opting for phone verification over email verification as it is effective in reducing spam accounts. Adding phone verification to your app doesn't need to be complex. This tutorial shows how to use Nexmo Verify SDK for iOS in a "To-Do List" application that uses Parse for a backend.